Title :
A wavelet-tree image coding system with efficient memory utilization
Author :
Andreopoulos, Y. ; Schelkens, P. ; Zervas, N.D. ; Stouraitis, T. ; Goutis, C.E. ; Cornelis, J.
Author_Institution :
Dept. ETRO, Vrije Universiteit Brussel, Brussels, Belgium
Abstract :
This paper describes an efficient implementation of an image coding system based on the independent wavelet-tree coding concept. The system consists of a transform and a (de)coding engine that operate in a pipelined fashion. The main focus of this paper is on the encoding part since, due to the system architecture, the decoder has identical memory utilization. Experimental results prove that the proposed system achieves comparable coding performance to the state-of-the-art, while it localizes the memory accesses to small memory modules and uses minimal computational resources
Keywords :
data compression; decoding; image coding; pipeline processing; transform coding; trees (mathematics); wavelet transforms; SPIHT coding; coding engine; coding performance; decoding engine; efficient memory utilization; independent wavelet-tree coding; memory access; memory modules; pipelined operation; system architecture; transform coding; wavelet-tree image coding system; Computer architecture; Decoding; Encoding; Engines; Focusing; Image coding; MPEG 4 Standard; Multimedia systems; Video compression; Wavelet transforms;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.941268